Automatic folder structure based on time and date

[MaddoScientisto]

I usually categorize my threads with the following folder structure:

threads/year/month

so

2015/01 2015/02 2015/03

etc.

The thing is, I forget to do it sometimes, so if it's ok I'll code a feature to do that automatically, with a toggle in the settings.

Tell me if I should add anything else to the feature